vjw0rm | 3a2e31f2844df5cb91eedbf24c0b93de4b0aa08525f733132c2bce0d7ab81acc

Resubmissions

10-11-2024 21:28

241110-1bhk6avgrr 10

Analysis

max time kernel
147s
max time network
187s
platform
windows7_x64
resource
win7-20240903-en
submitted
10-11-2024 21:28

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General

Target

058c3a111cb50601c15b4410b3770720b948702207b5ad6492b82e1c4fd310bc.js

Score

10^/10

vjw0rm execution persistence trojan worm

Malware Config

Signatures

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm
Vjw0rm family
vjw0rm

Blocklisted process makes network request 7 IoCs

flow	pid	Process
10	2480	wscript.exe
17	2480	wscript.exe
28	2480	wscript.exe
37	2480	wscript.exe
48	2480	wscript.exe
56	2480	wscript.exe
70	2480	wscript.exe

Drops startup file 5 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ystPIbPNKH.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ystPIbPNKH.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\058c3a111cb50601c15b4410b3770720b948702207b5ad6492b82e1c4fd310bc.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ystPIbPNKH.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\058c3a111cb50601c15b4410b3770720b948702207b5ad6492b82e1c4fd310bc.js	wscript.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\058c3a111cb50601c15b4410b3770720b948702207b5ad6492b82e1c4fd310bc = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\058c3a111cb50601c15b4410b3770720b948702207b5ad6492b82e1c4fd310bc.js\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\058c3a111cb50601c15b4410b3770720b948702207b5ad6492b82e1c4fd310bc = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\058c3a111cb50601c15b4410b3770720b948702207b5ad6492b82e1c4fd310bc.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\058c3a111cb50601c15b4410b3770720b948702207b5ad6492b82e1c4fd310bc = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\058c3a111cb50601c15b4410b3770720b948702207b5ad6492b82e1c4fd310bc.js\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\058c3a111cb50601c15b4410b3770720b948702207b5ad6492b82e1c4fd310bc = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\058c3a111cb50601c15b4410b3770720b948702207b5ad6492b82e1c4fd310bc.js\""	wscript.exe

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1728 wrote to memory of 2228	1728	wscript.exe	31
PID 1728 wrote to memory of 2228	1728	wscript.exe	31
PID 1728 wrote to memory of 2228	1728	wscript.exe	31
PID 1728 wrote to memory of 2480	1728	wscript.exe	32
PID 1728 wrote to memory of 2480	1728	wscript.exe	32
PID 1728 wrote to memory of 2480	1728	wscript.exe	32
PID 2480 wrote to memory of 2732	2480	wscript.exe	34
PID 2480 wrote to memory of 2732	2480	wscript.exe	34
PID 2480 wrote to memory of 2732	2480	wscript.exe	34

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\058c3a111cb50601c15b4410b3770720b948702207b5ad6492b82e1c4fd310bc.js
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1728
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\ystPIbPNKH.js"
  2⤵
  - Drops startup file
  PID:2228
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\058c3a111cb50601c15b4410b3770720b948702207b5ad6492b82e1c4fd310bc.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:2480
- - C:\Windows\System32\wscript.exe
    "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\ystPIbPNKH.js"
    3⤵
    - Drops startup file
    PID:2732

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\058c3a111cb50601c15b4410b3770720b948702207b5ad6492b82e1c4fd310bc.js

Filesize
38KB

MD5
b6dd12e8207cb20a56c9063d8ae13403

SHA1
81c8d38e92d3861e5f938e1e0e73ce109f52b317

SHA256
058c3a111cb50601c15b4410b3770720b948702207b5ad6492b82e1c4fd310bc

SHA512
a2d08ecdca6e0245c0583deddba9b131d7bd1c065cf5f70463cd845b758c53b5f5c98a0790d328fc8ae1714b8864b565db6a70d4d0d38f2ac08f8ecb4b338599

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C:\Users\Admin\AppData\Roaming\ystPIbPNKH.js

Filesize
5KB

MD5
3f75805db0186d3c8029b081f5f2fee8

SHA1
52638c547acfeee17fcc4b1a07c2793189a961b1

SHA256
ed8dda658502e532ef36879efc55c342c58b5df99727bf40469ba9f2aec2ab9c

SHA512
ee4f61bf7107376f235a09588d279b42402df4017857fbeaf69f316ed4e65501af2a620290044b9c73dfd9d46906a0db823dd53044daf05e395c120fb81c5cd7

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Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads